The Elder Scrolls IV: Oblivion (PC)

Cheat ListFirstly, add
a -dev or -devuser switch to the command or target line to the game
executable via a Windows shortcut. While playing, drop the developer
console via the tilde/~ key (next to numeric 1).

Stealing from NPC ShopkeepersFirst
off, go to any armor shop that has a piece of armor on display that you
want. Jump up onto the shop keep's counter and just run into and knock
the armor or item you want off the counter. This is not illegal in the
make believe universe of Elder Scrolls and it will rouse no undue
interest from anyone. Now, you just keep kicking it by running into it
multiple times until you have the item in a corner away from the view
of the shop keeper.

The shop owner will actually follow you
around the shop while you run about. Get him/her to follow you to the
opposite end of the store, then quickly run back to where you placed
the armor item. Use the sneak ability (default RIGHT CTRL) and pick it
up before they see you. If you are good enough, you can steal armour
and maybe more!